Trump signs executive order for 10% global tariff hours after Supreme Court IEEPA ruling

Trump said his administration would also rely on other statutory tools, including Section 301 investigations and Section 232 national security provisions under the Trade Expansion Act, to maintain trade pressure on partners.

US President Donald Trump, on Saturday, signed an executive order imposing a new 10% tariff on imports from all countries, hours after the Supreme Court struck down key elements of his earlier sweeping trade levies.

Announcing the move on Truth Social, Trump said he signed the order from the Oval Office and that it would take effect "almost immediately".

"It is my Great Honor to have just signed, from the Oval Office, a Global 10% Tariff on all Countries," he wrote.

The decision follows a 6–3 Supreme Court ruling that Trump exceeded his authority by using the International Emergency Economic Powers Act (IEEPA) to impose broad reciprocal tariffs.

The judgment significantly curtailed a central pillar of his trade policy.

The new global tariff will be imposed under Section 122 of the Trade Act of 1974, which allows the president to introduce temporary tariffs for up to 150 days. Any extension beyond that period would require congressional approval. Unlike the earlier measures, the statute requires the tariffs to be nondiscriminatory.

Trump said his administration would also rely on other statutory tools, including Section 301 investigations and Section 232 national security provisions under the Trade Expansion Act, to maintain trade pressure on partners.

US Trade Representative Jamieson Greer said the administration’s approach would ensure continuity. "We’re going to keep addressing this so that the deficit can keep going down," he said, describing the measures as "incredibly legally durable".

Treasury Secretary Scott Bessent said the shift in legal authority was unlikely to significantly alter revenue projections. "Treasury’s estimates show that the use of Section 122 authority, combined with potentially enhanced Section 232 and Section 301 tariffs, will result in virtually unchanged tariff revenue in 2026," he said.

In separate posts, Trump sharply criticised the justices who ruled against him. "Those members of the Supreme Court who voted against our very acceptable and proper method of TARIFFS should be ashamed of themselves," he wrote, calling the decision ridiculous".

He also claimed that tariffs had strengthened national security and reduced fentanyl inflows, and said alternative mechanisms would now replace the measures struck down by the court.